Filler inserting machine



July 12, 1932. M. G. 51155 FILLER INSERTING MACHINE Filed Feb. 20, 19314 Sheets-Sheet l W T jg J y 1932- M. G; BLISS FILLER INSERTING MACHINEFiled-Feb. 20, 1951 4 Sheets-Sheet 2 Z d 60 fiazcaz g' mm 13,416- /V Ikw July 12, 1932. M. G. BLISS FILLER INSERTING MACHINE Fiied Feb. 20,1931 4 Sheets-Sheet 5 July 12, 1 932. I uss 1,866,745

FILLER INSERTING MACHINE Filed Feb. 20, 1931 4 Sheets-Sheet 4 1 '2VIIIIIIIIIIIIIIIIJ.

Milli/Iii Patented July 12, 1932 UNITED STATES PATENT oFFicE MALCOLM G.BLISS, OF NORTH GRAFTON, MASSACHUSETTS, ASSIGNOR TO HEY'WOOD BOOT & SHOECOMPANY, OF WORCESTER, MASSACHUSETTS, A. CORPORATION OF MASSACHUSETTSFILLER INSERTIN'G IiiACHINE Application filed February 20, 1931.

This invention relates to a machine for in serting a filler in a weltshoe.

WVhen the insole lip is turned upward and stitched to the welt andupper, a substantially triangular recess or so-called gutter is left inthe under side of the insole and just Within the line of welt stitches.In high grade shoes it is desirable to fill this recess with atriangular strip of leather known as a filler, in order to level up thesole and prevent a depression being formed in the insole after the shoehas been put in use.

This filler strip has commonly been cemented in place by a rather slowand laborious hand operation, which was not always productive ofsatisfactory results, particularly at the toe of the shoe.

It is the general object of my invention to provide means formechanically inserting and pressing a filler strip into the insole l precess or gutter of a welt insole.

Further features of my invention relate to the provision of a yieldingsupport for the edge of the shoe during the filler inserting operation;to the provision of a pilot or guide to facilitate the insertion of thefiller strip in the desired position, particularly around the toeportion of the shoe, and to the provision of a hammer or pressing membereffective to firmly force the filler strip into the recess or gutter andalso effective to feed the shoe and filler strip forward.

My invention further relates to arrangements and combinations of partswhich will be hereinafter described and more particularly pointed out inthe appended claims.

A preferred form of the invention is shown in the drawings, in whichFig. 1 is a side elevation of my improved machine;

Fig. 2 is a front view of the lower portion of the machine, looking inthe direction of the arrow 2 in Fig. l; i

Fig. 8 is a sectional side elevation, taken along the line 33 in Fig. 2;

Fig. 4 is a detail side elevation, looking in the direction of the arrow4 in Fig. 2;

Fig. 5 is a detail plan view, looking in the direction of the arrow 5 inFig. 3;

Fig. 6 is an enlarged front elevation of the Serial No. 517,360.

upper part or head of the machine, looking in the direction of the arrow6 in Fig. 1;

Fig. is a side elevation of the head of the machine, looking in thedirection of the arrow 7 in Fig. 6;

Fig. 8 is a side elevation of a guide-plate for the filler strip,looking in the direction of the arrow 8 in Fig. 6';

Figs. 9 and 10 are detail sectional plan of the shoe shown in section;

Fig. 14 is a side elevation of the hammer I or presser foot, with aportion of the shoe shown in section, and

Figs. 15 to 17 are diagrammatic front elevations illustrating thefunctions of the guide and presser footor hammer.

Referring first to Fig. 11, I have shown the under side of a welt shoe Shaving an insole A, an insole lip B, and a welt W. The lip B (Fig. 13)is turned upward and outward and stitches D are inserted to secure thewelt W and the edge of the upper U to the insole A. When the lip B isthus turned upward and outward, a substantially triangular recess orgutter G (Figs. 13 and 1%) is formed in the bottom of the insole A.

The object of the present invention, as above stated, is to insert afiller strip F into the gutter or triangular recess G. It is customaryto treat the surface of the insole atthe recess or gutter portion withone or more coats of cement, which are allowed to dry before the fillerstrip is inserted. This strip is then cemented and inserted and pressedfirmly into the recess, providing a substantially level bottom surfacefor the insole A, as indicated in Fig. 14.

I will now describe the machine which I have devised for mechanicallyinserting the strip F in the previously cemented gutter G.

The machine as shown in Fig. 1 comprises two distinct parts, namely ayielding support for the shoe, and a combined pressing and feeding head.The yielding support will first be described, referring particularly toFigs. 1 to 5.

As shown in these figures, my improved support comprises a plunger 20(Fig. 3) vertically slidable in a sleeve 21 secured in a base or stand22 which in turn is firmly secured to the frame 23 of the machine. Theframe 23 may be mounted upon a stand or table H (Fig. 1) or otherwisesupported as desired. The plunger 20 is forced yieldingly upward by acoil spring 25, the lower end of which is seated on an adjusting screw26 (Fig. 3) threaded in a cap 27 secured to the lower end of the sleeve21. The pressure of the spring 25 may be adjusted by raising or loweringthe screw 26, and a lock nut 28 is provided for maintaining theadjustment.

A projection 30 (Figs. 2 and 4) extends upward from the upper end of thesleeve 21 and is slotted at 31 to receive a lug 32 fixed on the side ofthe plunger 20. An adjusting screw 33 is threaded into the top portionof the projection 30 and extends down into the slot 31 above the lug 32.Engagement of the lug with the lower end of the screw limits upwardmovement of the plunger 20 and by adjustment of the screw 33 this upwardlimit of movement may be substantially varied.

A rod 36 is secured to the plunger 20 and extends down through an axialopening in the adjusting screw 26 to a foot lever or pedal 37 (Fig. 1)mounted upon a fixed pivot 38. By depressing the pedal 37, this spring25 may be compressed and the plunger 20 correspondingly lowered from itsupper or operating position.

A bar 40 (Fig. 3) is mounted to slide cross wise in a slot 41 (Fig. 2)in the upper end of the plunger 20, the bar being confined in the slotby a cap or plate 42. A spring 44 normally moves the bar 40 to the right(Fig. 3) until a stop pin 45 engages the side of the plunger 20.

At the right hand or forward end of the sliding bar 40 a conicalsupporting roll 46 is pivotally secured by a screw 47. The thin upperedge of the roll 46 is adapted to be inserted between the welt and theupper of a shoe, as indicated in Fig. 13, and thus provides a supportfor the shoe but is capable of yielding both rearwardly and downwardly.The rearward yielding movement takes place more particularly during theinserting of the filler strip around the toe of the shoe, while thedownward yielding movement may take place when the hammer or presserfoot to be described is depressed.

Coming now to the description of the uppart part or head of the machine,I have shown a head frame 50 (Fig. 1) in which ashaft 51 is rotatablymounted. This shaft may be rotated by a belt 52 from any suitable sourceof power, and is preferably under manual or foot control. At its frontend, the shaft 51 is provided with an eccentric cam member 54 (Figs. 6and 7 which extends through a circular opening 55 in the upper end of asliding bar 56.

, The bar 56 is slotted at 57 to receive a square block 58, mounted on afixed pivot 59 and forming a guide for the bar 56 during its slidingmovement. The outer end of the block 58 is enlarged, as indicated at 60,to prevent outward displacement of the slide 56.

VVit-h this construction, it will be apparent that the slide 56 has botha vertical movement and a swinging movement, so that the hammer orpresser foot 62 (Fig. 6) mounted in a downward extension 63 of the slide56 will receive a four-motion movement, somewhat resembling the wellknown feed motion in a sewing machine.

It will be noted that the slide 56 is not confined laterally on the head50, so that both sliding and angular movement is permitted.

The filler strip F may be supplied from a spool or roll (not shown) andis conducted over a guide wheel (Fig. 1) pivotally mounted on a support71 extending upward from the head 50. The filler strip F is conducteddownward alongside aguide-bar 73 having a rearwardly tapered lower end.portion 74. A guide-plate 75 is mounted for Vertical adjustment on thelower end portion 74 of the guide-plate 73 and is secured in verticallyadjusted position by clamping screws 76 (Fig. 7).

The filler strip F is held against the guidebar 74 and guide-plate 75 bya roll 77 (Figs. 7 and 10). The roll 77 is mounted on the offset lowerend of a rod 78 which is secured in a rocker plate 79 (Fig. 6). Theplate 79 is mounted on a fixed pivot 80 and is engaged by a spring 81acting to force the roll 77 against the filler strip F. The yieldingmounting of the roll 77 permits the roll to move outwardly for threadingpurposes or to accommodate variations in the thickness of the fillerstrip.

The lower end of the guide-plate 75 is curved toward the hammer orpresser foot 62, as clearly shown at 82 in Fig. 6. A guiding rib orprojection 83 is formed at the front edge of the curved portion 82 ofthe plate 75 and a rear guiding device 84 is formed at the back side ofthe lower curved portion 82. A pilot 85 projects downward from thedevice 84 and is in the form of a lip or spur positioned at the lefthand end of the device 84, as shown in Fig. 6.

At its extreme lower end, the curved portion 82 of the guide-plate 7 5is recessed, as indicated at 87 in Fig. 9, to receive a portion of thelower end of the hammer or presser foot 62, which is shown in section inly curved toe portion of the shoe. The cf Fig. 9. From this figure itwill be seen that the presser foot has a front portion 90 adapted toenter the recess 87 and positioned substantially in advance or to theright of a rear portion 91 of the presser foot. The parts 90 and 91 arepreferably serrated.

Having described the details of construction of my improvedfiller-inserting machine, the method of operation thereof is mostclearly shown in Figs. 18 to 17 inclusive. The filler strip F isconducted over the guidewheel (Fig. 1) and alongside the guidebar 73(Fig. 7), passing behind the roll 77 and between the front and rearguiding devices 83 and 8% on the curved lower portion 82 of theguide-plate 75. The filler strip F is thus brought to a positiondirectly underneath the presser foot 62.

The plunger 20 and supporting roll 46 are then depressed by the pedal 37and the shoe to be treated is presented manually to the machine in suchposition that the edge of the conical supporting roll 46 (Fig. 13)enters between the welt W and the upper U. The plunger 20 is thenreleased and the pilot 85 enters the recess or gutter G at the side ofthe insole lip B. The spring 44 (Fig. 3) on the cross-bar 40 pushes thesupporting roll 46 against the shoe, holding the same with its insolelip B pressed firmly against the pilot 85. Rotation of the eccentricshaft 51 in the head 50 gives the presser foot or hammer 62 a repeatedfour-motion movement.

Starting from the raised position shown in Fig. 15, the presser foot 62moves substantially downward with little side motion to the positionshown in Fig. 16. The advance or front portion (Fig. 9) of the presserfoot 62 engages the thin edge of the filler strip at the side of thepilot 85 and the rear portion 91 engages the thick edge of the fillerstrip after it has passed the pilot 85.

After the presser foot reaches the position shown in Fig. 16, itreceives a substantially transverse motion to the left with littlevertical motion while in contact with the filler strip and shoe, thusacting not only as a device for pressing the strip F firmly into thegutter G, but also acting to feed the shoe and the strip forward duringthe pressing opera tion. The presser foot 62 continues its move mentupward and to the right after the pressing and feeding operation,thereby returning the presser foot to the position shown in Fig. 15.

Usually, he shoe and the supporting roll 46 on the plunger 20 are pusheddownward somewhat from normal position at each pressing and feedingmovement of the presser foot.

The filler strip is thus accurately guided to the gutter G and is firmlypressed therein, and all parts cooperate in such a way that the strip iseasily inserted, even around the sharpfective action of the presser footmay be conveniently interrupted at any time by depressing the pedal 37.

The operation is much more quickly performed than the previous handoperation and the filler strip is more firmly and accurately seated inthe gutter G. A substantial amount of time and labor is thus saved,while at the same time superior results are attained.

Having thus described my invention and the advantages thereof, I do notwish to be limited to the details herein disclosed, otherwise than asset forth in the claims, but what I claim is z- 1. A machine forinserting a filler strip in the gutter of the in-sole of a lasted andstitched welt shoe, said machine comprising a support for the edge ofthe shoe, means to guide a filler strip to the gutter at the inner sideof the welt-attaching lip of the insole of said shoe, and means to pressthe filler strip firmly into said gutter.

2. A machine for inserting a filler strip in the gutter of the in-soleof a lasted and stitched welt shoe, said machine comprising a supportfor the edge of the shoe, means to guide a filler strip to the gutter atthe inner side of the welt-attaching lip of the insole of said shoe, andmeans to press the filler strip firmly into said gutter and tosimultaneously feed said shoe and strip forward.

8. A machine for inserting a filler strip in the gutter of the in-soleof a lasted and stitched welt shoe as set forth in claim 2, in which thesupport is mounted to yield in the direction in which said latter meanspresses against the filler strip, and also in a direction substantiallyperpendicular to said first yielding movement.

4. A machine for inserting filler strip in the gutter of the in-sole ofa lasted and stitched welt shoe, said machine comprising a support forthe edge of the shoe, means to guide a filler strip to the gutter at theinner side of the welt-attaching lip of the insole of said shoe, a pilotengaging the inner side of the insole lip and thereby presenting thefiller strip accurately in said gutter, and means to press the tillerstrip firmly into said gutter.

5. A machine for inserting a filler strip in the gutter of the in-soleof a lasted and stitched welt shoe, said machine comprising a supportfor the edge of the shoe, means to guide a filler strip to the gutter atthe inner side of the welt-attaching lip of the insole of said shoe,said means including a guide plate having a curved lower end portionwith front and rear guiding projections, and means to press the fillerstrip firmly into the gutter.

6. Amachine for inserting a filler strip in the gutter of the in-sole ofa lasted and stitched welt shoe, said machine comprising a support forthe edge of the shoe, means to guide a filler strip to the gutter at theinner side of the welt-attaching lip of the insole of said shoe, saidmeans including a guide plate having a curved lower end portion withfront and rear guiding projections and with a pilot device engaging theinner side of the insole lip,

and means to press the filler firmly into said gutter.

7. A machine for inserting a filler strip in the gutter of the in-soleof a lasted and stitched welt shoe, said machine comprising a supportfor the edge of the shoe, means to guide a filler strip to the gutter atthe inner side of the welt-attaching lip of the insole of said shoe, anda combined feeding and pressing member having a four-motion movement.

8. A machine for inserting a filler strip in the gutter of the in-soleof a lasted and stitched Welt shoe, said machine comprising a supportfor the edge of the shoe, means to guide a filler strip to the gutter atthe inner side of the welt-attaching lip of the insole of said shoe, anda combined feeding and pressing member having a four-motion movement,said member having a serrated stripengaging end portion formed in twoparts, one part being positioned substantially in advance of the otherpart.

9. A machine for inserting a filler strip in the gutter of the in-soleof a lasted and stitched welt shoe, said machine comprising a supportfor the edge of the shoe, means to guide a filler strip to the gutter atthe inner side of the welt-attaching lip of the in-sole of said shoe,and a combined feeding and pressing member having a four-motionmovement, said member having a serrated stripengaging end portion formedin two parts, one part being positioned substantially rearward of theother part with respect to the direction of shoe feed and engaging thethin edge portion of said filler strip, with the second part engagingthe thick edge portion of said strip in advance of the point ofengagement of said member With said thin portion.

10. A machine for inserting a filler stri in the gutter of the in-soleof a lasted an stitched welt shoe, said machine comprising a support forthe edge of the shoe, means to guide a filler strip to the gutter at theinner side of the welt-attaching lip of the insole of said shoe, a pilotto relatively position said shoe and filler strip, and a combinedfeeding and pressing member having a portion engaging the thin edgeportion of the filler strip at the side of said pilot and having asecond portion engaging the thick edge portion of said strip in advanceof said pilot.

In testimony whereof I have hereunto affixed my signature.

MALCOLM G. BLISS.

